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Intrinsic geometric scattering probed by picosecond optoacoustics in a cylindrical cavity: Application to acoustic and optical characterizations of a single micron carbon fiber
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10.1063/1.3464563
/content/aip/journal/apl/97/3/10.1063/1.3464563
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/3/10.1063/1.3464563
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Pump and probe beams are focused on the sample surface. SAD is the path of an acoustic ray in a section of the cylinder, detected in the first echo 2L. The acoustic displacement after one reflection of the longitudinal wave front on the free surface was calculated in the XN05 fiber, showing the cylindrical shape of the longitudinal wave front.

Image of FIG. 2.
FIG. 2.

Reflectivity changes measured with a XN05 carbon fiber. The thermal background has been substracted to reveal the acoustic content. Two acoustic echoes are detected after one (2L) and three (4L) reflections at the cylinder free surface. The two insets focus on each acoustic echo.

Image of FIG. 3.
FIG. 3.

Brillouin scattering signature observed on the reflectometric signal in the first picoseconds (solid line) and fit with a sine function damped by an exponential decay (dashed line).

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/content/aip/journal/apl/97/3/10.1063/1.3464563
2010-07-19
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Intrinsic geometric scattering probed by picosecond optoacoustics in a cylindrical cavity: Application to acoustic and optical characterizations of a single micron carbon fiber
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/3/10.1063/1.3464563
10.1063/1.3464563
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